In the men's event, top seed Nikolay Davydenko was pushed all the way by American wildcard Donald Young before coming through their second-round match 6-2 4-6 7-5.

The Russian breezed through the first set, but Young, whose opening-round win was his first on the ATP Tour, hit back before Davydenko snatched the final set for victory. The Russian will now play French 13th seed Gilles Simon.

Fourth seed David Ferrer beat John Isner for the second time in a week, downing the American 6-7 6-2 6-2 to reach the third round, where he will play Russian Igor Andreev.

Fifth seed Paul Henri-Mathieu of France beat Peruvian Luis Horna 6-3 7-6 to set up a clash with Spanish 10th seed Nicolas Almagro, who came from behind to beat another Frenchman, Julien Benneteau, 6-7 6-3 6-3.